Abstract:
A defect of a phase shift mask, which has a phase shifter disposed on a transparent substrate, formed into a predetermined pattern and acting to shift a phase of exposure light transmitted therethrough and an etching stopper disposed between the phase shifter and the transparent substrate, which is resistant to an etching to which the phase shifter is subjected and transparent for exposure light is corrected by selectively etching a defective portion of the phase shifter, having a lacking type defect, with respect to the etching stopper layer along the whole thickness of the phase shifter and by perforating a portion of the etching stopper layer and the transparent substrate positioned under the etched defective portion by a depth which corresponds to a magnitude of an optical path of the phase shifter for the exposure light, the etching being a reactive etching which uses charged particle beam and a reactive gas and, the bottom surface of a portion etched being flattened by utilizing a fact that the phase shifter is selectively etched.
Abstract:
An auto-focusing electron microscope used for the observation, measurement and/or checking of a circuit pattern or the like comprises an objective lens capable of changing a focal position of an electron beam, an optical system for projecting a light and shade pattern having a light-permeable portion and a light-shielding portion onto the surface of a specimen through the objective lens, and a detector for detecting the projected pattern while optically reflecting it, whereby focusing can be made while reducing any damage and/or charging of the specimen.
Abstract:
To enable visual observation and X-ray analysis of a sample irradiated by an electron beam, a heat-protective assembly overlying a sample-supporting surface includes an enclosure with a central window for the electron beam, a surrounding annular window for light rays and a pair of lateral windows for X-rays emanating from the sample. An inner shield has a frustoconical body, with generatrices converging toward the supporting surface, which gives passage to both the light rays and the electron beam while screening an area surrounding the annular lighttransmissive window of the enclosure without, however, blocking the passage of the X-rays. A set of deflecting plates for the electron beam is mounted on the inner shield, between its frustoconical body and a diaphragm forming the central window, in a zone between the paths of the light rays and the electron beam.
Abstract:
A wafer having μLEDs is inspected using cathodoluminescence microscopes. A fast scan is enabled by splitting the CL beam into several beams and sensing the beams with point detectors. Optical filters are inserted in the optical path upstream of the detectors, such that each detector senses a different frequency band. The signals are ratioed and the ratios are compared to expected reference. Regions of extreme value are identified and, if desired, a high resolution scan is performed on the regions or a sample of the regions. Viability score is calculated for each identified region.
Abstract:
An apparatus and a method for micromachining samples is provided. The apparatus includes an integral combination of a sample holder, a focused ion beam exposure system for projecting a FIB onto a first position on the sample, and a light optical microscope. The LM is configured for imaging or monitoring said first position. The method includes the steps of capturing LM images of the sample, determining a position and physical dimensions of a region of interest in the sample based on the LM images, establishing from the LM images settings of the sample holder and/or the FIB exposure system, for micromachining the sample to bring the region of interest more closer to the surface, and moving the sample or the trajectory of the FIB to locate the first position on the sample accordingly, and activating the FIB for micromachining the sample.
Abstract:
A charged particle beam device includes: a charged particle source configured to emit a charged particle beam; an acceleration electric power source connected to the charged particle source and configured to accelerate the charged particle beam; a second objective lens configured to focus the charged particle beam onto a sample; and a second detector. The second objective lens is positioned on the opposite side of the sample from where the charged particle beam is incident on the sample. The second detector is configured to receive at least one of: an electromagnetic wave that the sample emits upon receiving the charged particle beam, and an electromagnetic wave that the sample reflects upon receiving the charged particle beam. The second detector carries out a detection of the received electromagnetic wave(s).
Abstract:
A method of imaging a specimen using ptychography includes directing a charged-particle beam from a source through an illuminator so as to traverse the specimen and land upon a detector, detecting a flux of radiation emanating from the specimen with the detector, calculating at least one property of a charged-particle wavefront exiting the specimen based on using an output of the detector in combination with applying a mathematical reconstruction technique, wherein the at least one property comprises a phase of the wavefront, and wherein applying the mathematical construction technique comprises directly reconstructing the phase of the wavefront to determine a reconstructed phase of the wavefront. An associated apparatus is also described.
Abstract:
The present invention relates to a device and a method for the stoichiometric analysis of samples.In order to study the spatial distribution of different proteins in the plasma membrane of a complete cell within a short time frame, a device and a method are proposed for the stoichiometric analysis of samples.The object is established by means of a device for the stoichiometric analysis of samples, said device comprising a) a sample processing device comprising a sample holder for holding the sample, means for setting the temperature, means for adding and removing fluids (including gases) and at least one fluid reservoir, b) an electron microscope with a detector, and c) a computer-controlled process control system for controlling the means for setting the temperature and the means for adding and removing fluids (including gases), a computer-controlled and automated imaging device that captures images by means of the electron microscope, a unit that stores the captured images and an image analysis unit controlled by the computer.
Abstract:
Methods, devices and systems for patterning of substrates using charged particle beams without photomasks and without a resist layer. Material can be removed from a substrate, as directed by a design layout database, localized to positions targeted by multiple, matched charged particle beams. Reducing the number of process steps, and eliminating lithography steps, in localized material removal has the dual benefit of reducing manufacturing cycle time and increasing yield by lowering the probability of defect introduction. Furthermore, highly localized, precision material removal allows for controlled variation of removal rate and enables creation of 3D structures or profiles. Local gas injectors and detectors, and local photon injectors and detectors, are local to corresponding ones of the columns, and can be used to facilitate rapid, accurate, targeted substrate processing.
Abstract:
Methods, devices and systems for patterning of substrates using charged particle beams without photomasks and without a resist layer. Material can be deposited onto a substrate, as directed by a design layout database, localized to positions targeted by multiple, matched charged particle beam columns. Reducing the number of process steps, and eliminating lithography steps, in localized material addition has the dual benefit of reducing manufacturing cycle time and increasing yield by lowering the probability of defect introduction. Furthermore, highly localized, precision material deposition allows for controlled variation of deposition rate and enables creation of 3D structures. Local gas injectors and detectors, and local photon injectors and detectors, are local to corresponding ones of the columns, and can be used to facilitate rapid, accurate, targeted, highly configurable substrate processing, advantageously using large arrays of said beam columns.